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Expired Canadian patentCanada

Cd20-specific antibodies and methods employing same

CA 2897608 C · Owner: Duke University · Inventors: Hamaguchi, Yasuhito; Poe, Jonathan C.; Tedder, Thomas F.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention provides monoclonal antibodies and antigen-binding fragments thereof that specifically bind to CD20 as well as pharmaceutical compositions comprising the same The invention further provides methods of using the monoclonal antibodies antigen-binding fragments, and pharmaceutical compositions for example, in methods of depleting B cells or in treating B cell disorders Also provided are cells nucleic acids and methods for producing the monoclonal antibodies

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed May 7, 2004 and granted July 31, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 7, 2004
GrantedJuly 31, 2018
Term endedMay 7, 2024
Patent numberCA 2897608 C
Classification (IPC)C07K16/28 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMay 7, 2004Patent grantedJuly 31, 2018Term endedMay 7, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.